sennosides, which are glycosides of dianthrone-type aglycones, in other words sennidins. Sennosides A and B are major components. Other dimersfound infair quantities inthe dried drugare sennosides C and D, which are the 8,8' diglucosides of sennidin C and D and the isomers of a heterodianthrone, namely rhein aloe-emodin dianthron

laxative; often included into laxative and antihaemorrhoidai teas and herbal collections. The therapeutic indication is the symptomatic treatment of constipation